This document defines a Management Information Base (MIB) module for use with network management protocols in the Internet community. In particular, it describes objects used for managing parameters of the "Very High Speed Digital Subscriber Line 2 (VDSL2)" interface type, which are also applicable for managing Asymmetric Digital Subscriber Line (ADSL), ADSL2, and ADSL2+ interfaces.

This document defines a Management Information Base (MIB) module for use with network management protocols in the Internet community. In particular, it describes objects used for managing parameters of the "Very High Speed Digital Subscriber Line 2 (VDSL2)" interface type, which are also applicable for managing Asymmetric Digital Subscriber Line (ADSL), ADSL2, and ADSL2+ interfaces.

nltiniedia communications is otic of tlic most challcnging rescarch areas cmcrging rcccntly, due to tlic advance M of multimedia compression atid coding technologics. With the rcccnt siiccesses in the establishtneiit ofsomc multimedia coiiimunicatioiis standards as well as the rapid proliferation of the Liscs and demands, wc can predict thc crcation of a vast nunibcr of applications destined to...

The number of the high-speed Internet access users, those with broadband access, has reached 20 million. Of particular interest is the significant growth introduction number of fiber-to-the-home (FTTH) access users. Commercial FTTH in Japan started in 1997 and provides residential planeold-telephone-service (POTS) and CATV signals transmission by using a combination of synchronous-transfer-mode...

We consider an ADSL access network consisting of subscribers, DSLAMs, metro Ethernet switches and a broadband remote access aggregation server (BRAS). We obtain expressions for dimensioning the access network in the upstream direction. Specifically, we show that the bandwidth required at each DSLAM, metro Ethernet switch, and BRAS can be expressed as an exponential function of the subscribers i...

The Discrete Multi Tone (DMT) modulation is considered a viable technique for high-speed digital transmission over subscriber loop. It was selected as the standard for ADSL modems and it is also a strong candidate in the VDSL area. This paper investigates a programmable solution for the DMT based VDSL modems using Texas Instrument processor family TMS320C62xx. A structure for both transmitter a...

The requirements for the analogue front-end for an ADSL modem are discussed, based upon the modem performance and the signal, noise and distortion-signal flows in the system. The relation between the various blocks and the asymmetric nature of the transmission are highlighted and their impact on the different blocks of the analog front end is indicated. The SNR specification of the A/D converte...

A generalization of the well-known DMT/OFDM data transmission method is proposed which can utilize redundancy in the time domain as well as in the frequency domain to completely cancel intersymbol and interchannel interference caused by the channel impulse response. The new systems provide a considerable reduction in latency time and a high increase of bandwidth efficiency and thus open the way...